Browsing by Author "Bažant, Zdeněk Pavel"
Now showing items 1-15 of 15
-
Conversion of explicit microplane model with boundaries to a constitutive subroutine for implicit finite element programs
(2021-03-30)
Article
Open AccessWhereas various simplistic microplane models of limited applicability, defined by stress–strain curves on the microplane, can function as either explicit or implicit, the explicit-to-implicit conversion of realistic versatile ... -
Diffusion-controlled and creep-mitigated ASR damage via microplane model: II. Material degra- dation, drying, and verification
(American Society of Civil Engineers (ASCE), 2016-10-28)
Article
Open AccessThe theory for the material and structural damage due to the alkali-silica reaction (ASR) in concrete is calibrated and validated by finite element fitting of the main test results from the literature. The fracture mechanics ... -
Fracturing in concrete via lattice-particle model
(CIMNE, 2011)
Conference report
Open AccessNumerical simulation is used to explore the behavior of concrete beams of different sizes and different notch lengths, loaded in three-point bending. The entire range of notch depth is studied. One limit case is type 1 ... -
Impact comminution of solids due to local kinetic energy of high shear strain rate: I. Continuum theory and turbulence analogy
(2014-03-01)
Article
Restricted access - publisher's policyThe modeling of high velocity impact into brittle or quasibrittle solids is hampered by the unavailability of a constitutive model capturing the effects of material comminution into very fine particles. The present objective ... -
Impact comminution of solids due to local kinetic energy of high shear strain rate: II-Microplane model and verification
(2014-03-01)
Article
Restricted access - publisher's policyThe new theory presented in the preceding paper, which models the dynamic comminution of concrete due to very high shear strain rate, is now compared to recent test data on the penetration of projectiles through concrete ... -
Microplane model for fracturing damage of triaxially braided fiber-polymer composites
(2011-04)
Article
Restricted access - publisher's policyA material model for the fracturing behavior for braided composites is developed and implemented in a material subroutine for use in the commercial explicit finite element code ABAQUS. The subroutine is based on the ... -
Microplane model M6F for fiber reinforced concrete
(CIMNE, 2011)
Conference report
Open AccessThe new microplane model M6f for fiber reinforced concrete features several improvements over the earlier versions: (i) An explicit volumetric-deviatoric split to no split transition formulation in tension which eliminates ... -
Microplane model M7 for plain concrete. I: Formulation
(American Society of Civil Engineers (ASCE), 2013-12-01)
Article
Restricted access - publisher's policyMathematical modeling of the nonlinear triaxial behavior and damage of such a complexmaterial as concrete has been a long-standing challenge in which progress has been made only in gradual increments. The goal of this ... -
Microplane model M7 for plain concrete: II. Calibration and verification
(American Society of Civil Engineers (ASCE), 2012-11-16)
Article
Restricted access - publisher's policyThe microplane material model for concrete, formulated mathematically in the preceding Part I, is here calibrated by material test data from all the typical laboratory tests taken from the literature. Then the model is ... -
Microplane model M7f for fiber reinforced concrete
(2013-06)
Article
Restricted access - publisher's policyModel M7f is a new model for fiber reinforced concretes under static and dynamic loads, which features two kinds of improvement over the earlier versions: (1) It is built on M7, a new, greatly improved, microplane model ... -
Microplane model M7for fiber reinforced concrete
(2013-06-01)
Article
Restricted access - publisher's policyModel M7f is a new model for fiber reinforced concretes under static and dynamic loads, which features two kinds of improvement over the earlier versions: (1) It is built on M7, a new, greatly improved, microplane model ... -
Multiscale simulation of fracture of braided composites via repetitive unit cells
(2011-04)
Article
Restricted access - publisher's policyTwo-dimensional triaxially braided composites (2DTBCs) are attractive in crashworthiness design because their fracture can dissipate a significantly larger amount of impact energy than other light-weight materials. This ... -
Recent progress in microplane modelling of plain concrete
(CIMNE, 2013)
Conference report
Open AccessDespite determined efforts in mathematical modelling of multiaxial behaviour of plain concrete by many researchers, the existing models have not achieved a full description of this complex behaviour. Among these models, the ... -
RILEM draft recommendation: TC-242-MDC multi-decade creep and shrinkage of concrete: material model and structural analysis. Model B4 for creep, drying shrinkage and autogenous shrinkage of normal and high-strength concretes with multi-decade applicability
(2015-04)
Article
Open AccessIn response to the continuously advancing concrete technology, a new prediction model for creep and shrinkage is presented. This model, named B4, builds on the theoretically justified model B3, which is a RILEM recommendation ... -
Spherocylindrical microplane constitutive model for shale and other anisotropic rocks
(2017-06-01)
Article
Open AccessConstitutive equations for inelastic behavior of anisotropic materials have been a challenge for decades. Presented is a new spherocylindrical microplane constitutive model that meets this challenge for the inelastic ...
