A gradient-extended two-surface damage-plasticity model based on a von Mises yield criterion has been proposed by [1, 2], which can be flexibly adapted to (quasi-)brittle-like, ductile-like, or various material behaviors in between. However, the does not take into account effect of hydrostatic pressure, therefore it hardly failure behavior pressure-sensitive materials such as geomaterials and s...

According to the damage mechanics theory and Lemaitre strain equivalence theory, because most rock materials are brittle materials, Griffith strength criterion has good applicability describe fracture failure of from perspective energy. Using a new method micro-element based on criterion, assuming obeys Weibull distribution, true triaxial constitutive model softening reflecting whole process is...

Laser additive manufacturing enables economical production of complex lightweight structures. To realize the potential benefits technology in industrial applications, fatigue performance parts additively manufactured materials must be modelized. The aim this paper is to present a new modeling approach combining plasticity and damage, appropriate for as-built Laser-Powder Bed Fusion (LPBF) model...

In December 1993, the river Meuse ooded and caused a damage of about 250 million Dutch guilders. This prompted the Dutch government to initiate a project to investigate and compare strategies that can reduce future losses due to ooding on the basis of several criteria, including some concerning uncertainties. To obtain decisions that reduce ood damage, one should account for the following uncer...

This paper presents a micromechanics-based elastoplastic damage model for quasi-brittle rocks in compression stress state. The plastic strain is considered to be related to frictional sliding along microcracks and inherently coupled with damage evolution. By following a homogenization procedure, we first determine the free energy for the matrix-cracks system. The thermodynamic force associated ...

Output-based structural damage detection is becoming increasingly appealing due to its potential in real engineering applications without any restriction regarding excitation measurements. A new transmissibility-based damage detection approach is presented in this study by combining transmissibility with correlation analysis in order to strengthen its performance in discriminating damaged from ...

A micromechanical damage constitutive model is presented to predict the overall elastoplastic behavior and damage evolution in random carbon fiber polymer matrix composites (RFPCs). To estimate the overall elastoplastic damage responses, an effective yield criterion is derived based on the ensemble-volume averaging process and first-order effects of eigenstrains due to the existence of spheroid...

The newly developed Yeh-Stratton (Y-S) Strength Criterion was used to study the failure of composite materials with central holes and normal cracks. To evaluate the interaction parameters for the Y-S failure theory, it is necessary to perform several biaxial loading tests. However, it is indisputable that the inhomogeneous and anisotropic nature of composite materials have made their own contri...