Forming Simulations of MMC Components by a Micromechanics Based Hierarchical FEM Approach

2007 ◽  
Author(s):  
C. O. Huber ◽  
M. H. Luxner ◽  
S. Kremmer ◽  
S. Nogales ◽  
H. J. Böhm ◽  
...  
Keyword(s):  
Forming Simulations ◽  
Hierarchical Fem

scholarly journals Sheet Forming Simulations of Automotive Parts using Different Yield Functions

2010 ◽  
Author(s):  
Jin-Woo Lee ◽  
Frédéric Barlat ◽  
Dong-Jin Kim ◽  
F. Barlat ◽  
Y. H. Moon ◽  
...  
Keyword(s):  
Sheet Forming ◽  
Yield Functions ◽  
Automotive Parts ◽  
Forming Simulations

Finite Element Modeling of Unidirectional Non-Crimp Fabric for Manufacturing of Composites with Embedded Cabling

2013 ◽  
Vol 554-557 ◽  
pp. 484-491 ◽  
Author(s):  
Alexander S. Petrov ◽  
James A. Sherwood ◽  
Konstantine A. Fetfatsidis ◽  
Cynthia J. Mitchell
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Explicit Finite Element ◽  
Shell Elements ◽  
Beam Elements ◽  
Hybrid Finite Element ◽  
International Benchmarking ◽  
Unidirectional Glass ◽  
Forming Simulations

A hybrid finite element discrete mesoscopic approach is used to model the forming of composite parts using a unidirectional glass prepreg non-crimp fabric (NCF). The tensile behavior of the fabric is represented using 1-D beam elements, and the shearing behavior is captured using 2-D shell elements into an ABAQUS/Explicit finite element model via a user-defined material subroutine. The forming of a hemisphere is simulated using a finite element model of the fabric, and the results are compared to a thermostamped part as a demonstration of the capabilities of the used methodology. Forming simulations using a double-dome geometry, which has been used in an international benchmarking program, were then performed with the validated finite element model to explore the ability of the unidirectional fabric to accommodate the presence of interlaminate cabling.

scholarly journals Mass-ratio and Magnetic Flux Dependence of Modulated Accretion from Circumbinary Disks

2021 ◽  
Vol 922 (2) ◽  
pp. 175
Author(s):  
Scott C. Noble ◽  
Julian H. Krolik ◽  
Manuela Campanelli ◽  
Yosef Zlochower ◽  
Bruno C. Mundim ◽  
...  
Keyword(s):  
Black Holes ◽  
Magnetic Flux ◽  
Internal Stress ◽  
Light Output ◽  
Threshold Value ◽  
Periodic Signal ◽  
Mass Ratio ◽  
Binary Black Holes ◽  
Accretion Flow ◽  
Forming Simulations

Abstract Accreting supermassive binary black holes (SMBBHs) are potential multimessenger sources because they emit both gravitational-wave and electromagnetic (EM) radiation. Past work has shown that their EM output may be periodically modulated by an asymmetric density distribution in the circumbinary disk, often called an “overdensity” or “lump;” this modulation could possibly be used to identify a source as a binary. We explore the sensitivity of the overdensity to SMBBH mass ratio and magnetic flux through the accretion disk. We find that the relative amplitude of the overdensity and its associated EM periodic signal both degrade with diminishing mass ratio, vanishing altogether somewhere between 1:2 and 1:5. Greater magnetization also weakens the lump and any modulation of the light output. We develop a model to describe how lump formation results from internal stress degrading faster in the lump region than it can be rejuvenated through accretion inflow, and predicts a threshold value in specific internal stress below which lump formation should occur and which all our lump-forming simulations satisfy. Thus, detection of such a modulation would provide a constraint on both mass ratio and magnetic flux piercing the accretion flow.

scholarly journals Selective proper orthogonal decomposition model reduction for forming simulations

PAMM ◽  
2013 ◽  
Vol 13 (1) ◽  
pp. 115-116 ◽  
Author(s):  
Annika Radermacher ◽  
Stefanie Reese ◽  
Ashraf Moh'd Hasan Hadoush
Keyword(s):  
Proper Orthogonal Decomposition ◽  
Model Reduction ◽  
Orthogonal Decomposition ◽  
Decomposition Model ◽  
Forming Simulations ◽  
Proper Orthogonal

scholarly journals Friction in Sheet Metal Forming: Forming Simulations of Dies in Try-Out

2018 ◽  
Vol 1063 ◽  
pp. 012134
Author(s):  
M Sigvant ◽  
J Pilthammar ◽  
J Hol ◽  
J H Wiebenga ◽  
T Chezan ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Forming Simulations

scholarly journals Introductory study of sheet metal forming simulations to evaluate process robustness

2018 ◽  
Vol 418 ◽  
pp. 012111 ◽  
Author(s):  
Sravan Tatipala ◽  
Johan Pilthammar ◽  
Mats Sigvant ◽  
Johan Wall ◽  
Christian M Johansson
Keyword(s):  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Process Robustness ◽  
Forming Simulations
Sign in / Sign up

Export Citation Format

Share Document