Modelling of Size Effect with Regularised Continua

Acta Polytechnica

L. J. Sluys¹  H. Askes¹  A. Simone¹ 

关键词: size effect;    modelling;    statistic and deterministic size effect;    stress fluctuation;   

DOI  :  

来源: Czech Technical University in Prague, Faculty of M

【 摘 要 】

A nonlocal damage continuum and a viscoplastic damage continuum are used to model size effects. Three-point bending specimens are analysed, whereby a distinction is made between unnotched specimens, specimens with a constant notch and specimens with a proportionally scaled notch. Numerical finite element simulations have been performed for specimen sizes in a range of 1:64. Size effects are established in terms of nominal strength and compared to existing size effect models from the literature. 

【 授权许可】

Unknown