Essais mécaniques
Veille normative février 2020

ASTM E606/E606M,  Méthode d’essai normalisée pour les essais de fatigue sous chargement contrôlé (Revision 2019)

Remplace ASTM E606/E606M ( de juin 2012).

Standard test method for strain-controlled fatigue testing

This test method covers the determination of fatigue properties of nominally homogeneous materials by the use of test specimens subjected to uniaxial forces. It is intended as a guide for fatigue testing performed in support of such activities as materials research and development, mechanical design, process and quality control, product performance, and failure analysis. While this test method is intended primarily for strain-controlled fatigue testing, some sections may provide useful information for force-controlled or stress-controlled testing. The use of this test method is limited to specimens and does not cover testing of full-scale components, structures, or consumer products. This test method is applicable to temperatures and strain rates for which the magnitudes of time-dependent inelastic strains are on the same order or less than the magnitudes of time-independent inelastic strains. No restrictions are placed on environmental factors such as temperature, pressure, humidity, medium, and others, provided they are controlled throughout the test, do not cause loss of or change in dimension with time, and are detailed in the data report.

Publié par ASTM le 01/11/2019

ASTM E1457,  Méthode d’essai normalisée pour la mesure du temps de propagation des fissures par fluage dans les métaux (Revision 2019)

Remplace ASTM E1457 ( de juin 2015).

Standard test method for measurement of creep crack growth times in metals

This test method covers the determination of creep crack initiation (CCI) and creep crack growth (CCG) in metals at elevated temperatures using pre-cracked specimens subjected to static or quasi-static loading conditions. The solutions presented in this test method are validated for base material (i.e. homogenous properties) and mixed base/weld material with inhomogeneous microstructures and creep properties.

Publié par ASTM le 15/11/2019

ASTM E1820,  Méthode d’essai normalisée pour la mesure de la ténacité à la rupture (Revision 2020)

Remplace ASTM E1820 ( de novembre 2018).

Standard test method for measurement...