2020601962
INTRODUCTION
F E M O F H A T - S E C T I O N T U B E
Hat-section tubes play a crucial role in various industries for structural support and stability.
Traditional ones face issues (corrosion and excessive weight).
Innovative methods, shell-solid coupling with variable
thickness.
PROBLEM STATEMENT
Uniform thickness assumptions in Finite Element models lead to inaccuracies in predicting stress, strain, and deformation. Advanced modeling is necessary for accurate representation of structures with varying thicknesses.
Studying how parametric variations influence the energy absorption and structural performance of the hat-section tube.
F E M O F H A T - S E C T I O N T U B E
OBJECTIVES
To Develop Finite Element Models: create and validate Finite Element Models (FEMs) of hat-section tubes with variable thickness using shell- solid coupling to improve it strength
To Conduct Parametric Studies: conduct parametric studies using the validated FEMs, exploring factors of material properties, thickness variations and web height.
F E M O F H A T - S E C T I O N T U B E
LITERATURE REVIEW
SHELL-SOLID COUPLING FINITE ELEMENT
MODELS
Finite Element Models (FEMs) crucial for assessing energy absorption in Hat-Section Tubes with aluminum/mild steel plates . Validation through quasi-static and impact bending experiments establishes crashworthiness performance [1]
Shell-solid coupling enhances modeling precision, connecting surface CAD meshes efficiently [4].
Increasing thickness in specific sections enhances specific energy absorption(SEA) and resistance to deformation during impact [11].
THICKNESS
Increasing top-hat thickness enhances Peak Crush Force (PCF) [15].
THICKNESS
F E M O F H A T - S E C T I O N T U B E
[1] Hashim, H., & Hashim, H. (2023, June).
Model development and optimization of hat-section tubes using response surface methodology. In AIP Conference Proceedings (Vol. 2571, No. 1). AIP Publishing.
[4] H. Yang, C. Dong, Y. Wu, and R. Dai,
“Mixed dimensional isogeometric FE-BE coupling analysis for solid–shell structures,” Comput. Methods Appl. Mech.
Eng., vol. 382, no. 113841, p. 113841, 2021.
[11] D. Siromani et al., “An experimental study on the effect of failure trigger mechanisms on the energy absorption capability of CFRP tubes under axial compression,” Compos. Part A Appl.
Sci. Manuf., vol. 64, pp. 25–35, 2014.
[15] B. Zhang, R. Yao, J. Fang, R. Ma, T. Pang, and D. Zhou, “Energy absorption behaviors and optimization design of thin-walled double-hat beam under bending,” Thin-Walled Struct., vol.
179, no. 109577, p. 109577, 2022.
METHODOLOGY
YES
Start
Literature review Problem
definition Material
selection Finite Element
Modelling of hat- section
tube(Abaqus)
Validation and verification of
FEMs
Testing Data analysis
Parametric studies (thickness,
material properties, web
height)
END Result and
interpretation
NO
Comparative
study
F E M O F H A T - S E C T I O N T U B E
EXPECTED RESULTS
Accurate Finite Element Models (FEMs) were developed for hat-section tubes with variable thickness profiles.
Parametric studies with validated FEMs provided detailed crashworthiness insights under varying conditions.
The project achieved improved accuracy in structural integrity assessments by utilizing shell- solid coupling techniques,
F E M O F H A T - S E C T I O N T U B E
EXPECTED RESULTS
F E M O F H A T - S E C T I O N T U B E
SCOPE AND LIMITATIONS
S C O P E
Depending solely on three-point bending tests at the top hat section
This project explores variables related to hat-section tube design;
-material properties, thickness variations and web width.
This project exclusively uses mild steel and aluminum for component fabrication
L I M I T A T I O N S
F E M O F H A T - S E C T I O N T U B E
GANTT CHART
DEVELOPMENT OF FE MODEL OF HAT-SECTION TUBES WITH VARIABLE
THICKNESS USING SHELL-SOLID COUPLING
THANK YOU
