Modeling the Dynamic Failure of Railroad Tank Cars Using a Physically Motivated Internal State Variable PlasticityDamage Nonlocal Model

المؤلفون المشاركون

Enakoutsa, Koffi
Solanki, Kiran N.
Tjiptowidjojo, Yustianto
Ahad, Fazle R.
Bammann, Douglas J.

المصدر

Modelling and Simulation in Engineering

العدد

المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2013-03-11

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

هندسة مدنية

الملخص EN

We used a physically motivated internal state variable plasticity/damage model containing a mathematical length scale to idealize the material response in finite element simulations of a large-scale boundary value problem.

The problem consists of a moving striker colliding against a stationary hazmat tank car.

The motivations are (1) to reproduce with high fidelity finite deformation and temperature histories, damage, and high rate phenomena that may arise during the impact accident and (2) to address the material postbifurcation regime pathological mesh size issues.

We introduce the mathematical length scale in the model by adopting a nonlocal evolution equation for the damage, as suggested by Pijaudier-Cabot and Bazant in the context of concrete.

We implement this evolution equation into existing finite element subroutines of the plasticity/failure model.

The results of the simulations, carried out with the aid of Abaqus/Explicit finite element code, show that the material model, accounting for temperature histories and nonlocal damage effects, satisfactorily predicts the damage progression during the tank car impact accident and significantly reduces the pathological mesh size effects.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Ahad, Fazle R.& Enakoutsa, Koffi& Solanki, Kiran N.& Tjiptowidjojo, Yustianto& Bammann, Douglas J.. 2013. Modeling the Dynamic Failure of Railroad Tank Cars Using a Physically Motivated Internal State Variable PlasticityDamage Nonlocal Model. Modelling and Simulation in Engineering،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-500282

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Ahad, Fazle R.…[et al.]. Modeling the Dynamic Failure of Railroad Tank Cars Using a Physically Motivated Internal State Variable PlasticityDamage Nonlocal Model. Modelling and Simulation in Engineering No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-500282

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Ahad, Fazle R.& Enakoutsa, Koffi& Solanki, Kiran N.& Tjiptowidjojo, Yustianto& Bammann, Douglas J.. Modeling the Dynamic Failure of Railroad Tank Cars Using a Physically Motivated Internal State Variable PlasticityDamage Nonlocal Model. Modelling and Simulation in Engineering. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-500282

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-500282