Thin-ply composites are gaining significant attention owing to their high damage resistance and ability enhance design flexibility in a composite structure. Herein we proposed mechanics model considering diffuse discrete ply damages thin-ply laminates for mesoscale simulation. To investigate the effects of thickness on evolution, loading unloading tests were conducted using cross-ply, angle-ply...

This paper discusses the topic of probabilistic analysis composite laminates rectangular plates containing a central circular hole under static tensile load. First, According to continuum damage mechanics (CDM) approach, structural models, definition and treatment random variables will be explored. Then, matrix cracking fiber/matrix debonding is modeled material constitutive relationships are i...

This study proposes a simulation method to evaluate fatigue progressive damage in composite laminates using intra-laminar and inter-laminar models. The damages are modeled continuum mechanics cohesive zone model, respectively, the evolution laws of formulated. A combining finite element models described this paper. Fatigue simulations conducted on curved specimen results that compared with expe...

Peridynamics is a recently developed theory of solid mechanics that replaces the partial differential equations (PDE) of classical continuum theories with integro-differential equations (IDE). We apply Finite Element Methods (FEM) as well as Discontinuous Galerkin Methods (DGM) to implement the peridynamic model. Since the integro-differential equations remain valid in the presence of discontin...

This paper presents a static analysis of laminated composite doubly-curved shells using refined kinematic models with polynomial and non-polynomial functions recently introduced in the literature. To be specific, Maclaurin, trigonometric, exponential and zig-zag functions are employed. The employed refined models are based on the equivalent single layer theories. A simply supported shell is sub...

Abstract In this study, a novel multiscale material model is proposed to simulate the elasto-plastic damage-healing behavior of an epoxy matrix in composite material. This framework combines non-linear mean field homogenization methodologies with continuum mechanics achieve healing process coupled manner along damage. The able predict time dependent effect combined damage propagation. model, de...

This paper reviews recent research on cement based composites design for damage tolerance. Specific focus is placed on the influence of fiber and interface properties on the complementary energy of the composite crack bridging behavior, which in turn governs the mechanics of composite fracture. The theoretical concepts are illustrated with examples of highly damage tolerant cement based composi...

Carbon nanotubes (CNTs) possess extremely high stiffness, strength and resilience, and may provide the ultimate reinforcing materials for the development of nanocomposites. In this paper, the effective mechanical properties of CNTbased composites are evaluated using a 3-D nanoscale representative volume element (RVE) based on continuum mechanics and using the finite element method (FEM). Formul...

Abstract In this paper, a general three-dimensional finite element model composed of eight-node three-dimension cohesive elements and solid with reduced integration for low-velocity impact analysis composite materials is established. Firstly, the continuum damage mechanics applied to simulate initiation evolution intra-laminar damage. Based on zone , are inserted between layers predict inter-la...

We studied the formation and evolution mechanism of polygonal cracks on rock surfaces under cooling by modelling meso-damage mechanics, continuum mechanics thermodynamics. Factors that affect surface damage include ambient temperature, lithology difference boundary restrictions. established simulated a heterogeneous model with weak layer for three types boundaries. These were biaxial constraint...