The work of fracture refractories is commonly calculated from crack mouth opening displacements (CMODs) in wedge splitting tests (WSTs). This paper proposes a methodology for estimating the energy notch displacement (NOD) measurements, which useful setups where CMOD not accessible. NODs and CMODs are both faces two WSTs experiments on castable refractory via digital image correlation (DIC) fini...

Bu çalışma kapsamında, farklı sıcaklık aktivasyonunda (30°C, 60°C, 90°C ) dayanım kazanan alkali aktivasyonlu lifli betonların (AALB) kırılma özellikleri incelenmiştir. amaçla 50x100x480 mm boyutlarında 10 çentik uzunluğuna sahip kiriş örnekler üretilmiştir. Eğilme etkisindeki üzerinden elde edilen Yük-CMOD grafiği altında kalan alanlar hesaplanarak enerjisi değerleri edilmiştir. Hesaplanan değ...

In this paper, a notched three-point bending test is used to study the fracture performance of short basalt fiber bundle reinforced concrete (SBFBRC). To compare and analyze enhancement effect different diameters content bundles on concrete, some groups are set up, P-CMOD curves each group specimens measured, toughness energy control calculated. The two important parameters law new concrete. re...

The spaceborne scatterometer is a microwave radar that provides high precision radiometric measures of the normalized radar cross section (σ) of the ocean surface. The backscatter is related to the superficial roughness that is in turn related to the local wind. Since microwave wavelengths are used the scatterometer, at first order, can be meant as an instrument which provides measurements inde...

In this section we show that our rules from Figure 2 are sound for MTAL0, assuming no type abstraction or type naming is present. We begin by stating some lemmas about MTAL0 (Figure 4). Lemma 2.1 (Preservation) If ` O1 link O2 ; O then ` O Lemma 2.2 (Associativity of link) If ` (O1 link O2) link O3 ; O then ` O1 link (O2 link O3) ; O. Lemma 2.3 (Commutativity of link) If ` O1 link O2 ; O then `...

To study fracture properties and establish a shear–softening constitutive law for rock–concrete interfaces, direct tension, three-point bending, single shear push-out tests were conducted on composite specimens with different degrees of interface roughness. The relationships between tensile strength (ft), average (?av), initial toughness (Kini 1C), mode I energy (GIf) interfacial roughness dete...

This work discusses the accuracies of geophysical model functions (GMFs) for retrieval of sea surface wind speed from satellite-borne Synthetic Aperture Radar (SAR) images in Japanese coastal waters characterized by short fetches and variable atmospheric stability conditions. In situ observations from two validation sites, Hiratsuka and Shirahama, are used for comparison of the retrieved sea su...

In this study, we present an approach to retrieve wave period, phase speed at the peak of the spectrum and thus the wave age from SAR image mode precision image (PRI) data around the coast of Japan. The in-situ NOWPHAS wave gauge data is used for matching up the SAR images and for validation. The wind speed at 10m height is acquired by inverting the relationship between the radar cross section ...