Footwear - Test methods for shanks - Longitudinal stiffness

This draft standard specifies a method for assessing the
stiffness in the longitudinal direction of steel shanks used for
the reinforcement of the waist region of women’s shoes and of
some men’s and children’s shoes.

Schuhe - Prüfverfahren für Gelenke - Längssteifigkeit

Der vorliegende Norm-Entwurf legt ein Verfahren für die Bestimmung der Längssteifigkeit von Stahl-gelenken fest, die für die Verstärkung des Gelenkbereichs von Damenschuhen und teilweise Herren- und Kinderschuhen verwendet werden.

Chaussures - Méthodes d'essai pour cambrions - Rigidité longitudinale

Obutev - Preskusne metode za spoje - Vzdolžna togost (ISO/DIS 18896:2016)

General Information

Status
Not Published
Publication Date
17-Dec-2017
ICS
61.060 - Footwear
Technical Committee
CEN/TC 309 - Footwear
Drafting Committee
CEN/TC 309/WG 1 - Minimum performance requirements and test methods for components for footwear
Current Stage
3098 - Decision to reject - Consensus building
Start Date
11-Apr-2014
Completion Date
11-Apr-2014
Ref Project
oSIST prEN ISO 18896:2016 - Footwear - Test methods for shanks - Longitudinal stiffness (ISO/DIS 18896:2016)

Relations

Revises
EN 12959:2000 - Footwear - Test methods for shanks - Longitudinal stiffness
Effective Date
13-Mar-2013

Overview

prEN ISO 18896 (draft ISO/DIS 18896) defines a standardized laboratory method to assess the longitudinal stiffness of steel shanks used to reinforce the waist region of women’s shoes and certain men’s and children’s shoes. Developed under CEN/ISO parallel processing (ISO/TC 216), the document provides repeatable test procedures, conditioning requirements and reporting rules to calculate the shank’s flexural rigidity - a key measure of stiffness affecting comfort, support and fit.

Key topics and technical requirements

  • Scope: Measurement of longitudinal stiffness for steel shanks (complete shank specimens).
  • Sampling & conditioning: Minimum of three specimens per shank type; condition specimens 48 hours in a controlled atmosphere per ISO 18454 before testing.
  • Apparatus:
    • Heel clamp designed to secure 32 mm ±1 mm of the shank without crushing flutes; clamp angle adjustable to make the loaded point horizontal.
    • Load application capable of delivering downward forces of 2 N, 4 N, 6 N and 8 N (±5%).
    • Vertical deflection measurement accurate to ±0.025 mm; timing accuracy ±0.1 s; callipers or rule ±0.5 mm.
  • Test method:
    • Shank clamped as a cantilever; downward loads applied to the forward end (typically ~6 mm from the end; ~11 mm for high-heeled shanks).
    • Measure vertical deflection after 5 s at each load level; repeat for the sequence of loads and confirm linearity of deflection increments.
    • Measure the moment length (clamp front edge to load point center).
  • Result calculation & reporting:
    • Flexural rigidity (S) is calculated from the measured load (F), deflection (a) and moment length (L) using the equation provided in clause 7.1, producing S in kilonewtons per square millimetre.
    • Report averaged S for the three specimens and include sample description, test conditions, any deviations and date.

Applications and who uses it

  • Footwear manufacturers and component suppliers use prEN ISO 18896 for product development, specification control and supplier verification of steel shanks.
  • Testing laboratories and quality-control departments apply this method for batch testing, benchmarking stiffness across designs, and verifying compliance with customer or regulatory requirements.
  • Designers and R&D teams rely on longitudinal stiffness data to optimize comfort, stability and performance for different shoe types (e.g., high heels vs. casual).

Related standards

  • ISO 18454 - Footwear: standard atmospheres for conditioning and testing (normative reference used by prEN ISO 18896).
  • Developed under ISO/TC 216 and adjacent CEN footwear standardization work (useful for broader footwear testing and material standards).

Keywords: prEN ISO 18896, ISO 18896, footwear shanks, longitudinal stiffness, test methods, flexural rigidity, steel shanks, ISO 18454, footwear testing.

Frequently Asked Questions

prEN ISO 18896 is a draft published by the European Committee for Standardization (CEN). Its full title is "Footwear - Test methods for shanks - Longitudinal stiffness". This standard covers: This draft standard specifies a method for assessing the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women’s shoes and of some men’s and children’s shoes.

This draft standard specifies a method for assessing the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women’s shoes and of some men’s and children’s shoes.

prEN ISO 18896 is classified under the following ICS (International Classification for Standards) categories: 61.060 - Footwear. The ICS classification helps identify the subject area and facilitates finding related standards.

prEN ISO 18896 has the following relationships with other standards: It is inter standard links to EN 12959:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

prEN ISO 18896 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-april-2016
Obutev - Preskusne metode za spoje - Vzdolžna togost (ISO/DIS 18896:2016)
Footwear - Test methods for shanks - Longitudinal stiffness (ISO/DIS 18896:2016)
Schuhe - Prüfverfahren für Gelenke - Längssteifigkeit (ISO/DIS 18896:2016)
Chaussures - Méthodes d'essai pour cambrions - Rigidité longitudinale (ISO/DIS
18896:2016)
Ta slovenski standard je istoveten z: prEN ISO 18896
ICS:
61.060 Obuvala Footwear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 18896
ISO/TC 216 Secretariat: AENOR
Voting begins on: Voting terminates on:
2016-01-28 2016-04-28
Footwear — Test methods for shanks — Longitudinal
stiffness
Chaussures — Méthodes d’essai pour cambrions — Rigidité longitudinale
ICS: 61.060
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization
(CEN), and processed under the CEN lead mode of collaboration as defined in the
Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 18896:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015

ISO/DIS 18896:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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ii © ISO 2015 – All rights reserved

ISO/WD 18896
Contents Page
Foreword . iv
Introduction . ¡Error! Marcador no definido.
1 Scope . 1

ISO/WD 18896
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 18896 was prepared by Technical Committee ISO/TC 216, Footwear, Subcommittee SC , and by
Technical Committee CEN/TC 309, Footwear in collaboration.
This second/third/. edition cancels and replaces the first/second/. edition (), [clause(s) / subclause(s) /
table(s) / figure(s) / annex(es)] of which [has / have] been technically revised.
iv © ISO 2012 – All rights reserved

WORKING DRAFT ISO/WD 18896
Footwear — Test methods for shanks — Longitudinal stiffness
1 Scope
This draft standard specifies a method for assessing the stiffness in the longitudinal direction of steel shanks
used for the reinforcement of the waist region of women’s shoes and of some men’s and child
...

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