On the mechanics of thermal buckling of oil storage tanks

Pantousa, Dafni; Godoy, Luis A.

doi:10.1016/j.tws.2019.106432

Cited by 18 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In vehicles, structural panels can experience significant temperature rise due to the aerodynamic heating [1]. Similarly, also civil engineering shell structures can be affected by high temperature rise due to fire [2]. The consequent high thermally-induced stresses and degradation of the thermoelastic properties can lead to buckling.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Thermal Buckling Analysis of Thin‐walled Structures: Solid‐shell Discretization, Continuation Method and Reduction Technique

et al. 2022

View full text Add to dashboard Cite

This work presents an accurate and efficient numerical tool for geometrically nonlinear thermoelastic analyses of thin‐walled structures. The structure is discretized by an isogeometric solid‐shell model with an accurate approximation of geometry and kinematics avoiding the parameterization of finite rotations. An efficient modeling of thermal strains, temperature‐dependent materials and general temperature profiles based on a numerical pre‐integration through the shell thickness is proposed. Then, a generalized path‐following method is developed for solving the discrete equations with the temperature amplifier as additional unknown, in order to trace the temperature‐displacement nonlinear curve also in case of limit points and unstable paths. A consistent definition of the tangent operators and a mixed integration point strategy give a robust and efficient analysis. Finally, a reduction technique is derived for a quick estimate of the nonlinear thermal buckling point. The reduced model consists of the initial path tangent, the first linearized buckling modes and their second order corrections. Numerical applications are given.

show abstract

Section: Introductionmentioning

confidence: 99%

Nonlinear Thermal Buckling Analysis of Thin‐walled Structures: Solid‐shell Discretization, Continuation Method and Reduction Technique

et al. 2022

View full text Add to dashboard Cite

show abstract

“…For example, structural panels in aerospace vehicles experience heating resulting from the aerodynamic friction, 7,8 while in civil engineering structures heating occurs in condition of fire. 9,10 Thermally induced stresses and degradation of the material stiffness properties are the main effects affecting the buckling point as well as the post-buckling response. For these reasons, the thermoelastic geometrically nonlinear analysis of plates and shells has obtained a growing interest in the research community, in light of the industry interest in optimizing structural costs and weight by operating safely also beyond the buckling point.…”

Section: Introductionmentioning

confidence: 99%

“…One of the main actions potentially leading to buckling failure is the temperature rise. For example, structural panels in aerospace vehicles experience heating resulting from the aerodynamic friction, 7,8 while in civil engineering structures heating occurs in condition of fire 9,10 . Thermally induced stresses and degradation of the material stiffness properties are the main effects affecting the buckling point as well as the post‐buckling response.…”

Section: Introductionmentioning

confidence: 99%

A Koiter reduction technique for the nonlinear thermoelastic analysis of shell structures prone to buckling

Liguori

Magisano

Madeo

et al. 2021

Numerical Meth Engineering

View full text Add to dashboard Cite

The multi-modal Koiter method is a reduction technique for estimating quickly the nonlinear buckling response of structures under mechanical loads requiring a fine discretization. The reduced model is based on a quadratic approximation of the full model using a few linear buckling modes and their second order corrections, followed by the projection of the equilibrium equations onto the modal subspace. In this article, the method is reformulated for geometrically nonlinear thermoelastic analyses of shell structures. The starting point is an isogeometric solid-shell discretization with an accurate modeling of thermal strains, temperature-dependent materials and general temperature distributions. The equilibrium path is defined as a displacement versus temperature amplifier curve, while mechanical loads are kept constant. The strain energy nonlinearity with respect to the temperature amplifier is the main obstacle in the definition of an accurate reduced model. This task is achieved by coherent asymptotic expansions in mixed form using independent stress variables at the integration points and accurate linear buckling modes obtained by a two-point mixed eigenvalue problem. Structures made of isotropic and multi-layered composite materials, including variable angle tow laminates, are considered to show the accuracy of the proposed method.

show abstract

Numerical study of failure modes of hazardous material tanks exposed to fire accidents in the process industry

Mo,

Xiao,

Chen

et al. 2024

Process Safety Progress

View full text Add to dashboard Cite

Fire accidents in oil tank farms can trigger domino effects, leading to multiple tank fires with catastrophic consequences. Preventing losses in large‐scale tank farms requires a dynamic assessment of fire‐induced domino accidents. Existing research often focuses on calculating the time to failure (TTF) of storage tanks but overlooks the influence of failure modes. This study develops numerical models to explore failure modes of oil storage tanks with uniform and stepwise walls exposed to thermal radiation. Factors such as the flame heights of combustion tank, adjacent spacings, wall thickness, and tank volumes are considered. The numerical model employs a solid double‐layer flame model to determine thermal radiation intensity and temperature, followed by a dynamic stress–strain and buckling analysis to obtain time to buckling (TTB) and time to yielding (TTY). If TTB < TTY, the failure model is buckling; otherwise, the failure model is yielding. Results indicate that failure modes in nonuniform thermal fields include buckling and yielding, with stepwise walls favoring buckling and uniform walls favoring yielding. When the wall thickness is below the critical value, failure is yielding; otherwise, it is buckling. These findings support risk management and emergency response for fire‐induced domino effects in oil tank farms.

show abstract

On the mechanics of thermal buckling of oil storage tanks

Cited by 18 publications

References 16 publications

Nonlinear Thermal Buckling Analysis of Thin‐walled Structures: Solid‐shell Discretization, Continuation Method and Reduction Technique

Nonlinear Thermal Buckling Analysis of Thin‐walled Structures: Solid‐shell Discretization, Continuation Method and Reduction Technique

A Koiter reduction technique for the nonlinear thermoelastic analysis of shell structures prone to buckling

Numerical study of failure modes of hazardous material tanks exposed to fire accidents in the process industry

Contact Info

Product

Resources

About