Finite element prediction of masonry compressive strength

Riddington, John; Naom, N.F.

doi:10.1016/0045-7949(94)90261-5

Cited by 24 publications

(16 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Case studies of walls in running bond are not uncommon [33,40,[42][43][44] but tests on walls in Flemish bond are rare [45] while a few suitable examples of English bond pillars were also identified [13,33]. The vast majority of these cases involve the characterization of clay brick masonry with a few exceptions involving stone block masonry [14,35] or compressed cement block masonry [15].…”

Section: Inventory Of Experimental Results Data Overviewmentioning

confidence: 99%

Numerical prediction of the behavior, strength and elasticity of masonry in compression

Drougkas

Roca

Molins

2015

Engineering Structures

View full text Add to dashboard Cite

The paper focuses on the numerical prediction of the compressive response of masonry by means of detailed micro-modelling techniques. In such a model, the material constituents (mortar and units) and the unit-mortar interfaces are separately described by means of specific constitutive equations.The available modeling choices are evaluated through a literature review of related case studies. A systematic approach is proposed and is corroborated by the numerical simulation of a large number of experimental cases from various sources. A total of fifty experimental results are simulated resulting in an overall good prediction of the compressive strength and elastic modulus of the masonry composite, as well as a realistic depiction of the failure mode.This study focuses on the numerical prediction of the compressive strength of masonry, extending to issues pertaining to global stiffness, failure mode, hardening and softening behavior of masonry and their numerical simulation. The masonry typology considered consists of solid units, primarily brick, and mortar of mostly lower strength and higher deformability. Highlights• The behavior of masonry in compression is investigated using micro-models• A combined smeared cracking-plasticity law is used for the units and mortar• A total of fifty experimental compression tests are simulated• Compressive strength and Young's modulus of masonry is well approximated• Remarks on the behavior and failure mode of masonry in compression are made

show abstract

Section: Inventory Of Experimental Results Data Overviewmentioning

confidence: 99%

Numerical prediction of the behavior, strength and elasticity of masonry in compression

Drougkas

Roca

Molins

2015

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…Until now, the study of brick masonry failure has been focussed on compression (Naraine and Sinha 1992; Alshebani and Sinha 1999;Khalaf et al 1994;Naraine and Sinha 1991;Riddington and Naom 1994), compression/shear failure mechanisms (Lourenço 1996;Lourenço et al 1998;Bernardini et al 1998;Anthoine 1995;Mojsilovic and Marti 1997;Jukes and Riddintong 2001;Bosiljkov et al 1998Bosiljkov et al , 2000Page 1978;Abdou et al 2006;Molnar 2002) and out of plane bending (Abdoud et al 1996;El-Metwally et al 1991;van der Pluijm 1999). A certain amount of time has been given to studying tensile failure and in plane flexural/tensile mechanisms of brickwork masonry (mode I fracture) (Cormeau and Shrive 1996a,b;Carpinteri et al 1997;Guinea et al 2000;Alfaiate and Almeida 2000), and practically nothing (based on the fracture mechanics approach), to tensile/shear failure Reyes et al 2004;Reyes 2004;van der Pluijm 1997).…”

Section: Introductionmentioning

confidence: 98%

Cohesive crack model for mixed mode fracture of brick masonry

2008

View full text Add to dashboard Cite

This paper presents a numerical procedure for mixed mode fracture of brickwork masonry. The model is an extension of the cohesive model prepared by the authors for concrete, and takes into account the anisotropy of the material. After the crack path is obtained, an interface finite element (using the cohesive fracture model) is incorporated into the trajectory. Such a model is then implemented into a commercial code by means of a user subroutine, consequently being contrasted with experimental results. Fracture properties of masonry are independently measured for two directions on the composed masonry, and then input in the numerical model. This numerical procedure accurately predicts the experimental mixed mode fracture records for different orientations of the brick layers and two homothetic sizes on masonry panels.

show abstract

“…The authors concluded that the mortar joint has a negligible effect on the compressive strength of the prism. Riddington and Naom [10] developed a finite element program to predict the ultimate compressive strength of masonry, using local failure criteria of the different materials. A theoretical investigation using three dimensional finite element analysis was done by Ganesan and Ramamurthy [11].…”

Section: Experimental Methodology and Programmentioning

confidence: 99%

Study of the compressive strength of concrete block prisms: stack and running bond

Mohamad

Lourenço

Roman

2011

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

The main goal of this work is to investigate the nonlinear behavior of concrete block masonry prisms under compression, with an emphasis in the prism deformability and the failure modes. A total of 18 stack-bonded prisms have been tested, using hollow blocks of a single geometry and two different mortar types. To investigate the effect of vertical joints, the bond pattern -stack and running bond -in the prism was varied, by using half units. Finite element analysis of hollow masonry prisms was done utilizing a commercial non-linear finite element code DIANA. The numerical simulation were carried out using non-linear two dimensional 8-node elements and the biaxial stress state material was modeled by a combination of the yield conditions of Rankine and Drucker-Prager. The numerical and experimental results were compared to validate the ability to predict deformation and peak load. The results show that an analytical model cannot be formulated without understanding the interaction between block and mortar. It was observed that: the non-linearities of the masonry correspond to an increase in the lateral strain due to extensive cracking of the material and a progressive increase in the ratio between lateral and axial strains.; the cracks in the three block stacked prisms constructed with a stronger mortar were vertical on both sides; the prisms constructed with a weaker mortar had, as a consequence of localized crushing, also vertical cracks due to stress concentration at some points; the presence of a vertical joint in the prism led to the appearance of separation cracks between the middle block and the vertical mortar joint.Keywords: concrete blocks, structural masonry, failure mode, compression behavior.O principal objetivo deste trabalho é investigar o comportamento não linear de prismas de blocos de concreto a compressão, com ênfase na deformabilidade e modo de ruptura. Um total de dezoito (18) prismas com blocos sobrepostos foram testados, usando blocos vazados com uma única geometria e dois traços de argamassa. Para investigar o efeito da junta vertical utilizaram-se dois meios blocos na junta intermediária dos prismas. Utilizou-se o programa comercial DIANA para simular em elementos finitos o comportamento da alvenaria estrutural. As simulações numéricas foram realizadas usando um elemento bidimensional de oito (8) nós e o estado biaxial de tensões do material foi modelado pela combinação das condições de Rankine e Drucker-Prager. Foram comparados os resultados numéricos e experimentais para validar a capacidade de prever as deformações e a carga última do conjunto. Pode se perceber pelos resultados que um modelo analítico não pode ser formulado sem um entendimento das interações entre o bloco e argamassa. Foi observado que a não linearidade da alvenaria correspondeu a um aumento nas deformações laterais devido à extensiva fissuração do material e a um progressivo aumento nas proporções entre a deformação lateral e axial; as fissuras nos prismas de três blocos construídas com argamassa forte foram verticais ...

show abstract

Finite element prediction of masonry compressive strength

Cited by 24 publications

References 1 publication

Numerical prediction of the behavior, strength and elasticity of masonry in compression

Numerical prediction of the behavior, strength and elasticity of masonry in compression

Cohesive crack model for mixed mode fracture of brick masonry

Study of the compressive strength of concrete block prisms: stack and running bond

Contact Info

Product

Resources

About