A new analytical critical thrust force model for delamination analysis of laminated composites during drilling operation
نویسندگان
چکیده
منابع مشابه
Drilling of carbon fibre reinforced laminates – a comparative analysis of five different drills on thrust force, roughness and delamination
The distinguishing characteristics of carbon fibre reinforced laminates, like low weight, high strength or stiffness, had resulted in the increase of their use during the last decades. Although parts are normally produced to “near-net” shape, machining operations like drilling are still needed. In result of composites non-homogeneity, this operation can lead to delamination, considered the most...
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Finite element analysis of the delamination crack propagation in laminated composites is presented. Fracture mechanics based Virtual Crack Closure Technique (VCCT), and the cohesive element technique, have been used to simulate the delamination initiation and propagation under Mode-I type loading. Detailed description of the parameter selection process for these two techniques with ABAQUS®/Stan...
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An analytical finite element technique was developed for predicting the thrust force and torque in drilling with twist drills. The approach was based on representing the cutting forces along the cutting lips as a series of oblique sections. Similarly, cutting in the chisel region was treated as orthogonal cutting with different cutting speeds depending on the radial location. For each section, ...
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ژورنال
عنوان ژورنال: Composites Part B: Engineering
سال: 2017
ISSN: 1359-8368
DOI: 10.1016/j.compositesb.2017.05.039