BS DD CEN/TS 15867:2009 PDF

Scope: This Technical Specification provides guidance on:  verifying the degree of misalignment of the load train of test machines, using a reference test specimen uniformly loaded in tension or in compression;  correcting for defects caused by, e.g. torsion and bending. This document is not intended to provide a quantitative and acceptable limit before the testing of ceramic matrix composites with a fibre reinforcement: unidirectional (1D), bidirectional (2D) and tridirectional (xD, with 2 < x ≤ 3) loaded along one principle axis of reinforcement. This limit depends on the sensitivity of each type of composite to the misalignment defect. NOTE 1 This limit is to be defined between the testing establishment and the customer. NOTE 2 Monolithic ceramics are very sensitive to misalignment defects, while ceramic matrix composites (CMCs) in general are moderately sensitive to them.

BS DD CEN/TS 15867:2009 Referenced Document

EN ISO 7500-1 Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verification and calibration of the force-measuring system
EN ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories*， 2017-12-01 Update
ISO 3611 Geometrical product specifications (GPS) — Dimensional measuring equipment — Design and metrological characteristics of micrometers for external measurements*， 2023-05-01 Update

2009 BS DD CEN/TS 15867:2009 Advanced technical ceramics - Ceramic composites - Guide to the determination of the degree of misalignment in uniaxial mechanical tests