Progressive failure of laminated composites with a hole under compressive loading based on micro-mechanics

Li, Wangnan; Cai, Hongneng; Li, Chao; Wang, Qing; Fang, Liang

doi:10.1080/09243046.2014.915105

Cited by 41 publications

(33 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The process of stiffness reduction after the initiation of failure takes place according to the model proposed by Matzenmiller [24]. Progressive reduction of material stiffness is controlled by variable failure parameters suitable for failure evolution [25][26][27][28][29][30]. There are five components of the progressive criterion's parameters responsible for the degradation of material properties: tensile and compressive fiber damage; tensile and compressive matrix; and interlayer shear.…”

Section: Introductionmentioning

confidence: 99%

Progressive Failure Analysis of Thin-Walled Composite Structures Verified Experimentally

et al. 2020

View full text Add to dashboard Cite

The subject of the presented research was a thin-walled composite column made of CFRP (carbon-epoxy laminate). The test sample had a top-hat cross-section with a symmetrical arrangement of laminate layers [90/−45/45/0]s. The composite structure was subjected to the process of axial compression. Experimental and numerical tests for the loss of stability and load-carrying capacity of the composite construction were carried out. The numerical buckling analysis was carried out based on the minimum potential energy criterion (based on the solution of an eigenvalue problem). The study of loss of load-carrying capacity was performed on the basis of a progressive failure analysis, solving the problem of non-linear stability based on Newton-Raphson’s incremental iterative method. Numerical results of critical and post-critical state were confronted with experimental research in order to estimate the vulnerable areas of the structure, showing areas prone to damage of the material.

show abstract

Section: Introductionmentioning

confidence: 99%

Progressive Failure Analysis of Thin-Walled Composite Structures Verified Experimentally

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Combining MMF theory and accelerated testing methodology (ATM) Cai [13] researched the long term failure behavior of multidirectional laminate under arbitrary frequency, load ratio and temperature. Li [14] proposed a non-interactive failure criteria based on MMF and researched the progressive failure of open-hole composite structure.…”

Section: Introductionmentioning

confidence: 99%

“…The uniaxial strengths of unidirectional UTS50/E51 laminate [14] The uniaxial strength of unidirectional laminate Table 2 MMF parameters of UTS50/E51 laminate [14] Critical parameters of constituents Table 3 Mechanical and thermal properties used in the FE model [14] .…”

mentioning

confidence: 99%

Failure analysis of composite laminate under low-velocity impact based on micromechanics of failure

Lou

Cai

et al. 2017

Composite Structures

Self Cite

View full text Add to dashboard Cite

Previous researches on the impacted composite laminates were mainly carried out according to the macromechanics-based homogenous strength theories, which ignore the local stress nonuniformity and strength difference between the fiber and matrix. In this paper, a new multiscale analysis method which combines the micromechanics of failure (MMF) theory for intralaminar damage and cohesive model for interlaminar failure is proposed. This approach is able to identify the failure modes of fiber and matrix in microscale as well as delamination between laminas. The finite element model of the multidirectional carbon fiber reinforced plastic (CFRP) laminate subjected to low-velocity impact is built on ABAQUS/Explicit platform. User material subroutine VUMAT is deveploed to analyze the micro stresses and determine the possible failure modes of fiber and matrix. Cohesive elements with bi-linear traction-separation law are employed to capture the onset and propagation of delamination. Finally, the structure response, fiber and matrix failure mode and delamination area are compared with experimental data under different impact energies, and the good agreements validate the effectiveness and accuracy of the novel method.

show abstract

“…The analytical approach is based on a nonlinear finite element analysis, in which the stiffness properties of the material are reduced at element level as its stress state reaches a failure condition [Chang et al, 1987]. The progressive damage approach has been successfully applied in the failure analyses of structure composite materials [Li et al, 2014;Tarfaoui et al, 2017;Massarwa et al, 2018]. Especially, Giner et al [2014] used this approach to simulate the damage state of a single osteon under compressive diametral load and proved that the simulated results were in good agreement with experimental evidence.…”

Section: Squeeze Damage Analysismentioning

confidence: 99%

Effects of Structure Characteristics of Osteocyte Lacunae on Squeeze Damage Resistance of Osteons

Liu

Chen

2019

Cells Tissues Organs

View full text Add to dashboard Cite

Scanning electron-microscopic observations show that there are many osteocyte lacunae between the circumferential lamellae, which are nonuniform in distribution. The lacunae are elliptical, and their major axes are along the circumferential direction of the osteon, which can be denoted as circumferential elliptical lacunae (CE). The observations also show that there are many circumferential microcracks in the osteons, and these microcracks are initiated from 2 endpoints of the major CE axis. To investigate the effects of the structural characteristics of osteocyte lacunae on the crackpropagated route and squeeze damage resistance of osteons, 3 different osteon models -CE, radially elliptical lacunae (RE), and circular lacunae (CL) -were created. The microcrack initiation and propagation of the 3 different osteon models were calculated and simulated based on progressive damage analysis. The results show that the crack-propagated route of the CE osteons is along the circumferential direction of the osteon, which is consistent with experimental observations, while those of the RE and CL are in the radial direction of the osteon. CE around the osteon in the bone is the result of long-term natural evolution, which is an important factor for bone to have strong fracture toughness.

show abstract

Progressive failure of laminated composites with a hole under compressive loading based on micro-mechanics

Cited by 41 publications

References 18 publications

Progressive Failure Analysis of Thin-Walled Composite Structures Verified Experimentally

Progressive Failure Analysis of Thin-Walled Composite Structures Verified Experimentally

Failure analysis of composite laminate under low-velocity impact based on micromechanics of failure

Effects of Structure Characteristics of Osteocyte Lacunae on Squeeze Damage Resistance of Osteons

Contact Info

Product

Resources

About