Strain-Softening Response and Failure Prediction in Notched Oriented Strand Board

被引：9

作者：

Malek, Sardar ^{[1
]}

Zobeiry, Navid ^{[2
]}

Dai, Chunping ^{[3
]}

Vaziri, Reza ^{[4
]}

机构：

[1] Univ Technol Sydney, Sch Civil Engn & Environm Engn, 15 Broadway, Ultimo, NSW 2007, Australia

[2] Composites Res Network, Dept Mat Engn, 309-6350 Stores Rd, Vancouver, BC V6T 1Z4, Canada

[3] FPInnovations, 2665 East Mall, Vancouver, BC V6T 1Z4, Canada

[4] Composites Res Network, Dept Civil Engn, 309-6350 Stores Rd, Vancouver, BC V6T 1Z4, Canada

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 2019年 / 31卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Oriented strand board; Wood; Composite; Strain softening; Finite-element method; Fracture; DAMAGE MECHANICS MODEL; ELASTIC PROPERTIES; COMPOSITE; WOOD; OSB; PERFORMANCE; FRAMEWORK; BEHAVIOR; FRACTURE;

D O I：

10.1061/(ASCE)MT.1943-5533.0002737

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The strain-softening response and failure of oriented strand boards (OSBs) were investigated both experimentally and numerically. Standard tests were used to characterize the elastic (modulus of elasticity) as well as damage properties (damage height, damage initiation strain, and fracture energy) of OSBs in two principal (parallel and perpendicular) directions. Experimental data were then used in conjunction with a recently developed physically based damage model to simulate the nonlinear response of notched OSB samples under tension using the finite-element (FE) method. Acceptable agreement between the FE simulations and experimental data was found. The results suggest that a strain-softening approach is capable of accurately modeling the damage progression in notched OSB samples.

引用

页数：8

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