In this research, two methods for crack detection in structures are presented and compared. The considered structure is a cantilever beam with rectangular cross section. In order to find cracks, firstly, a new technique based on wavelet analysis and finite element method (FEM) is applied. The advantage of this technique is that the crack detection process is more clear and comfortable than previous works. Then the process of crack detection is performed using FEM and combination of two types of artificial neural network (ANN) including radial basis function (RBF) and back-error propagation (BEP) neural networks. For crack identification in the proposed method, firstly, a RBF neural network is used to detect the number of cracks of structure. Then a BEP neural network is trained to detect the locations of cracks. Training of neural networks is performed using obtained data from FEM. Finally obtained results from two methods are compared with each other.
- Inderscience Publishers
- Applying artificial neural network and wavelet analysis for ...
Application note issue #5 - Cement Analysis August 2017
Cement analysis using FP program (Fundamental Parameters) Cement is a blend of several minerals. It is critical to control the elemental composition and properties such as strength, setting, time and color. ED-XRF is being used to analyze the raw components, raw meal, clinker, and the final cement product (Na, Mg, Al, Si, S, K, Ca, and Fe in Cement, Clinker, and Raw Meal).XRF is at the heart of the control of the production process in any modern cement works and is central to the ability of the cement maker...
P-METRIX - bringing edxrf lab analysis to the field
The P-Metrix is wrapped in a portable case that acts as a self-contained EDXRF laboratory and allows you to roll it to any site for your elemental analysis test.P-Metrix, bridging new frontiers in lab-to-field analysis, will be presented at the 2017 ACS Spring Meeting, at San Francisco, April 2nd - 4th, booth # 1706.The analytical and industrial instrumentation from Xenemetrix range from portable field or at-line instrumentation, benchtop units ranging in performance, up to floor standing advanced capability...
Qualitative analysis of elements Bi-layer Polymer of PVC& PMMA
Goal:To analyze all elements present in PVC and PMMA polymer layers with special attention to Pb, Zn, Ca, and Sn. Instrument:Xenemetrix made X-Calibur EDXRF analyzer with High resolution Silicon Drift Diode Detectors (SDD).
Quantitative Analysis of Geological Samples- X-Calibur
Abstract Quantitative and qualitative analysis of geological samples (rocks and river sediments) was performed on Xenemetrix EDXRF Benchtop Spectrometer System, model X-Calibur Objective: Perform XRF measurements on certified geological reference materials to build calibration curves for the major oxides (Na2O, MgO, SiO2, Al2O3, SiO2, P2O5, SO3, K2O, CaO, TiO2, MnO and Fe2O3) and for trace elements Cr, Co, Ni and Pb in these samples. Quantify geological samples of unknown concentrations with respect to...
Quantitative analysis of iron in flour
Abstract A quantitative analysis of Iron in flour via Xenemetrix EDXRF Laboratory Spectrometer System was performed by model EX-3600M. The minimum detection limit for Fe in flour matrix was determined to 0.8 ppm at 3 sigma. Objective To design an easy method by using EDXRF technique for quick and convenient measurements of Fe in flour at the level of tens of ppm. Background EDXRF is a fast and non-destructive technique that can quantify any type of samples in solid, powder or liquid form within a few...