background: in several conditions we have face cranial bone defects. reconstruction of these defects remains one of the most challenging problems encountered by craniofacial surgeons.   objective: to evaluate bone repair in cranial bone defects by use of an implant made of octacalcium phosphate in combination with bone matrix gelatin (ocp/bmg).   methods: we used 40, 5–6-week-old male sprague-d...

Abstract Results of the finite element analysis show that a far-side defect in steel plate, with depth greater by 10% plate thickness than near-side defect, can produce very similar magnetic flux leakage (MFL) signal. Due to fact measurement MFL itself lead misclassification as one, and thus underestimation its depth, comparative study three complementary techniques was performed. The following...

Abstract Based on the principle of electromagnetic eddy current testing, aiming at problems heavy workload and difficult location defects in periodic inspection buried pipelines, distribution probes, is modeled simulated by using ANSYS EM simulation software, correlation model between pipeline parameters, excitation signals, received signals established, quantitative relationship wall thickness...

The paper presents the numerical analysis of failure pressure wall loss defect metallic pipelines and validate it with experimental results. An optimization composite thickness for repair pipeline is also carried out using analysis. A nonlinear explicit FE code constitutive models steel material to modelling was used. Three different cases: non-defective pipe, defective pipe repaired are consid...