نتایج جستجو برای: strain based model

تعداد نتایج: 4552534  

Journal: :Proceedings in applied mathematics & mechanics 2021

In this contribution, an online adaptive reduced order model is presented for small-strain elasto-plasticity. Using the GALERKIN method, problem projected to a lower subspace giving based on displacement field snapshots. The adaptivity lies in update of projection operator, which carried out different parts simulation if certain criteria related convergence behavior are not fulfilled. With rela...

2012
L. HU

Constitutive equations for the multiaxial stress-strain behavior of aluminum alloy 5754 sheets were developed, based on crystal plasticity. A Taylor-based polycrystal plasticity model, a tangent formulation of the self-consistent viscoplastic model (VPSC), and an N-site viscoplastic model based on the fast Fourier transform (VPFFT) were used to fit a single slip system hardening law to the avai...

Journal: :MATEC web of conferences 2021

A three-dimensional reconstruction technique based on strain monitoring is proposed in this paper. According to the data of finite measuring points, shape characteristics whole rocket structure are reconstructed, which provides basis for reliability judgment structure. Based theory Ko , 3D algorithm model cylindrical realized. The nephogram plate simulated by ANASYS. And reconstructed algorithm...

Journal: :نشریه دانشکده فنی 0
وحید نوروزی فرد دانشگاه تهران عقیل یوسفی کما دانشگاه تهران

the built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. the built up layer (bul) is formed in second deformation zone near the tool-chip interface in the back of the chip. this parameter influences the tool life and machined surface quality. this bul should not be confused with the built up edge (bue). the deformation of the bul in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

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