This paper describes a new proof tool for deciding bit-vector problems in HOL4. The approach is based on “bit-blasting”, wherein word expressions are mapped into propositional formulas, which are then handed to a SAT solver. Significantly, the implementation uses the LCF approach, which means that the soundness of the tool is guaranteed by the soundness of HOL4’s logical kernel.

The study systematically compares the low-cycle fatigue (LCF) behaviors of novel martensitic steel (22MnSi2CrMoNi) and maraging (00Ni18Co9Mo4Ti). Results show that two types tested have a similar cyclic deformation behavior. softening resistance 22MnSi2CrMoNi is slightly inferior to 00Ni18Co9Mo4Ti at low total strain amplitude. However, gap gradually disappears with increase At same plastic amp...

Fatigue crack growth (FCG) rates have previously been reported in forged Ti6Al-4V aero-engine disk material under the conjoint action of LCF and HCF cycles at room temperature. It is found that systematic increases in LCF overload, applied prior to the commencement of the HCF cycles, reduce the contribution of the HCF cycles to crack growth rates. The application of overload also enhances the s...

Abstract An active disturbance rejection controll Strategy with lead compensation and feedforward (ADRC-LCF) is proposed to address the problem of poor power quality at output direct-to-direct converter when microgrid subject uncertain disturbances. The control strategy achieves reconstruction self-anti-disturbance controller by connecting over-compensator in series introducing differential fee...

INTRODUCTION The obesity epidemic has drawn attention to food marketing practices that may increase the likelihood of caloric overconsumption and weight gain. We explored the associations of discounted prices on supermarket purchases of selected high-calorie foods (HCF) and more healthful, low-calorie foods (LCF) by a demographic group at high risk of obesity. METHODS Our mixed methods design...

This paper presents low cycle fatigue (LCF) life prediction of a coated and uncoated exhaust manifolds. First Solidworks software was used to model the exhaust manifolds. A thermal barrier coating system was applied on the tubes c of the exhaust manifolds, consists of two-layer systems: a ceramic top coat (TC), made of yttria stabilized zirconia (YSZ), ZrO2-8%Y2O3 and also a metallic bond coat ...

In this work, stainless steel 316L obtained by Laser Powder Bed Fusion (L-PBF) has been produced and characterized. The experimental campaign focuses on the samples in as-built state under cyclic tension-compression loadings. Low cycle fatigue (LCF) high (HCF) tests are carried out. Microstructure observations performed before after As-built L-PBF a good LCF performance despite presence of surf...