Constitutive model development for lightly cemented scrap rubber tire chips

2005 ◽  
Author(s):  
Wa Yeung Tsoi
Keyword(s):  
Constitutive Model ◽  
Model Development ◽  
Tire Chips ◽  
Rubber Tire

scholarly journals Fatigue–Creep Interaction of P92 Steel and Modified Constitutive Modelling for Simulation of the Responses

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 307
Author(s):  
Tianyu Zhang ◽  
Xiaowei Wang ◽  
Wei Zhang ◽  
Tasnim Hassan ◽  
Jianming Gong
Keyword(s):  
Fatigue Life ◽  
Constitutive Model ◽  
Dwell Time ◽  
Kinematic Hardening ◽  
Model Development ◽  
Strain Range ◽  
Peak Stress ◽  
Constitutive Modelling ◽  
P92 Steel ◽  
Static Recovery

Fatigue–creep interaction (FCI) responses of P92 steel are investigated experimentally and numerically. A series of isothermal FCI experiments with tensile dwell time ranging from 60 to 600 s were conducted at two temperatures under strain-controlled trapezoidal waveform. The experimental responses demonstrate that the peak stress is influenced by temperature and dwell time. In other words, creep-mechanism-influenced stress relaxation during dwell time influences the peak stress and fatigue life (Nf). In addition, effects of strain range on peak stress and fatigue life under fatigue–creep loading are evaluated. Towards developing a simulation-based design methodology for high temperature components, first a conventional unified constitutive model is evaluated against the P92 steel experimental responses. Based on the simulation deficiency of the conventional model, a modified static recovery term incorporated in the kinematic hardening rule is proposed and satisfactory simulations of the P92 steel FCI responses are demonstrated. The experimental responses of P92 steel and strengths and deficiencies of the conventional and modified Chaboche models are elaborated identifying the important FCI phenomena and progress in constitutive model development for FCI response simulation.

Constitutive model development of fetal membrane mechanics: Mechanical testing and numerical simulation

2005 ◽  
Vol 193 (6) ◽  
pp. S112
Author(s):  
Michael House ◽  
Thibault Prevost ◽  
Ming Dao ◽  
Hidemi Kato ◽  
Michelle Oyen ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Constitutive Model ◽  
Mechanical Testing ◽  
Model Development ◽  
Fetal Membrane ◽  
Membrane Mechanics

THE ILWACO, WASHINGTON, TIRE FIRE OIL SPILL

1997 ◽  
Vol 1997 (1) ◽  
pp. 789-793
Author(s):  
Eric F. Heinitz ◽  
Melany Lee
Keyword(s):  
Oil Spill ◽  
Environmental Effects ◽  
Coastal Wetland ◽  
The State ◽  
Mitigation Measures ◽  
Preventative Measures ◽  
Tire Chips ◽  
Rubber Tire ◽  
Cooling Methods

ABSTRACT The Ilwaco tire fire oil spill occurred when oil generated by the pyrolysis of rubber tire chips began seeping from a hillside into an adjacent coastal wetland. The tire chips were used as road fill material to repair a section of State Route 100 damaged by a landslide. This paper discusses not only the complexities of the response to the oil spill, but also the elaborate cofferdam system and containment berm constructed to control and contain the continual flow of oil from the site until mitigation measures could be taken to eliminate the source. Because exposure to oxygen could potentially increase the risk of a tire fire, several in-situ cooling methods were evaluated. The unique properties of this oil, the environmental effects and restoration concerns, the excavation methods, and disposal problems are all discussed. This is one of two sites in the state of Washington where a road fill, constructed of shredded tire chips, has begun burning. A comparison between these two sites, along with some assumptions as to the causes and possible preventative measures, will be briefly discussed.

Interaction Between Hexagonal Wire Reinforcement and Rubber Tire Chips with and without Sand Mixture

2004 ◽  
Vol 27 (3) ◽  
pp. 11695
Author(s):  
L David Suits ◽  
TC Sheahan ◽  
S Youwai ◽  
DT Bergado ◽  
N Supawiwat
Keyword(s):  
Sand Mixture ◽  
Tire Chips ◽  
Rubber Tire

scholarly journals Development of a constitutive model for DPX2 explosive

2018 ◽  
Vol 183 ◽  
pp. 01059
Author(s):  
Philip Church ◽  
Peter Gould ◽  
David Williamson
Keyword(s):  
Constitutive Model ◽  
Impact Loading ◽  
Split Hopkinson Pressure Bar ◽  
Model Development ◽  
Tensile Tests ◽  
High Rate ◽  
Hopkinson Pressure Bar ◽  
Static Compression ◽  
Physically Based ◽  
Stress States

There is a significant challenge in simulating the behaviour of PBXs under high strain rate impact loading. A Porter-Gould physically based constitutive model has been developed for the DPX2 explosive. A series of quasi-static compression and tensile tests over a range of temperatures were performed together with DMA tests to calibrate the model. In particular tests were performed for different L/D ratios to understand the complex localisation and damage behaviour of the material. High rate tests on the compression Split Hopkinson Pressure Bar (SHPB) for a range of temperatures were then used for validation of the model under idealised stress states. Some model development is still required, particularly at lower temperatures near the glass transition temperature. In addition a series of classical Taylor Tests were used to validate the model under impact loading conditions at room temperature. The DYNA3D simulations gave very good results compared to the experiments for these impact conditions.

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