On the effect of substrates type in fracture strength of adhesively bonded DCB joints by a cohesive zone model analysis
محل انتشار: چهاردهمین همایش صنایع دریایی
سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 469
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شناسه ملی سند علمی:
NSMI14_144
تاریخ نمایه سازی: 12 تیر 1395
چکیده مقاله:
A debonding comparative study between Adhesively Bonded Composite Joints and single material joints and software convergence using pre-determined crack growth fracture mechanics based Continuous/Discrete Cohesive Zone Model (CZM) is performed using ANSYS commercial software. A nonlinear spring element is first introduced and then by means of mode I cohesive law (Mode I is an opening mode where the loadings are normal to the crack)cohesive strength σC, fracture energy GIC and cohesive stiffness KIP are calculated for the mentioned nonlinear spring element. This spring serves as the adhesion of the joints. Composite Joints are the joints that are made between two different materials, (here Aluminum-Steel, Aluminum-Composite and Steel-Composite) whereas single material joint are simply joints made between similar materials. Similar adhesive fracture energy is considered for different joints to examine resistance of joints against opening normal to the crack, flexural rigidity of substrates shows direct influence of on the required force to open substrates
کلیدواژه ها:
نویسندگان
Ashkan Babazadeh
MSc. Student, Amirkabir University of Technology;
Mohammad Reza Khedmati
Associate Professor, Amirkabir University of Technology;
Roohollah Hadipour Gudarzi
PHD candidate, Amirkabir University of Technology;