Loading Rate Effect on the Tensile Failure of Concrete and Its Constituents using Diametrical Compression and Direct Tension

Weckert, S. A.; Weerasooriya, Tusit; Gunnarson, C. Allan

doi:10.1007/978-1-4614-0216-9_3

Cited by 3 publications

(4 citation statements)

References 12 publications

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“…Published research on Ductal® in dynamic tension (Fujikake et al 2006;Weckert et al 2011) deals with relatively low strain rates of 1.0 × 10 -6 to 19 s -1 . Tensile strengths and dynamic increase factors (DIFs) from their work are summarized in Table 7.…”

Section: Dynamic Tensile Strengthmentioning

confidence: 99%

“…1 Only stress rates were given in Weckert et al (2011). The approximate equivalent strain rate was calculated assuming E = 7650 ksi (Graybeal 2006).…”

Section: Dynamic Tensile Strengthmentioning

confidence: 99%

“…Specimens were cured at 194°F for 2 days after demolding. Weckert et al (2011) performed diametric tension tests, also known as split or Brazilian tension tests, using a split Hopkinson pressure bar (SHPB). Specimens were disk-shaped, with a nominal thickness of .25 in.…”

Section: Dynamic Tensile Strengthmentioning

confidence: 99%

“…Ductal (Fujikake et al 2006) Ductal (Weckert et al 2011) Based on these data, Ngo and coworkers (Ngo and Mendis 2008;Ngo et al 2007b) proposed the following equation for the compressive DIF:…”

Section: Ngo and Mendismentioning

confidence: 99%

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Advanced cementitious materials for blast protection

Groeneveld¹,

Crane²

2023

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Advanced cementitious materials, commonly referred to as ultra-high performance concretes (UHPCs), are developing rapidly and show promise for civil infrastructure and protective construction applications. Structures exposed to blasts experience strain rates on the order of 102 s-1 or more. While a great deal of research has been published on the durability and the static properties of UHPC, there is less information on its dynamic properties. The purpose of this report is to (1) compile existing dynamic property data—including compressive strength, tensile strength, elastic modulus, and energy absorption—for six proprietary and research UHPCs and (2) implement a single-degree-of-freedom (SDOF) model for axisymmetric UHPC panels under blast loading as a means of comparing the UHPCs. Although simplified, the model allows identification of key material properties and promising materials for physical testing. Model results indicate that tensile strength has the greatest effect on panel deflection, with unit weight and elastic modulus having a moderate effect. CEMTECmultiscale® deflected least in the simulation. Lafarge Ductal®, a commonly available UHPC in North America, performed in the middle of the five UHPCs considered.

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Section: Dynamic Tensile Strengthmentioning

confidence: 99%

“…1 Only stress rates were given in Weckert et al (2011). The approximate equivalent strain rate was calculated assuming E = 7650 ksi (Graybeal 2006).…”

Section: Dynamic Tensile Strengthmentioning

confidence: 99%

Section: Dynamic Tensile Strengthmentioning

confidence: 99%