The phrase "a weak core" is correct and usable in written English.
It can be used to describe a lack of strength or stability in a central aspect of something, such as a physical structure, an argument, or a concept.
Example: "The team's performance suffered due to a weak core in their strategy, leading to inconsistent results."
Alternatives: "a fragile foundation" or "an unstable center".
This can reduce to the yield criterion for a solid monolithic cross-section and the classical yield criterion for sandwich cross-sections with a weak core, respectively.
In a weak core system made with recycled polypropylene (PP /high density polyethylene (HDPE), coextruded WPCs with reinforced virgin HDPE shells showed significantly improved flexural strengths compared with their core-only controls.
If you are overweight, have poor running form, have a weak core or hips, or have spent your entire life wearing shoes for most activities, then you'll appreciate that shoes are designed to provide your foot with extra support and cushion to absorb the impact from landing and to keep your foot from moving excessively (e.g., overpronating) when running. 1.
This could be interpreted as a "weak core response": not like the strong, individually significant core response observed for mannose-6-phosphate across all perturbations for OCCs, but nonetheless consistent in its small effect across all perturbations so as to yield an overall significant effect.
The RX3W/6MW comes with a weaker Core i3-350M CPU (2.26GHz), 4GB RAM, a 320GB HDD, a 1,366×768 display, a DVD multi-drive, Bluetooth V2.1+EDR, and Windows 7 Premium (32bit).
A theoretical model is obtained to predict the dynamic response of a clamped sandwich beam with thick weak core impacted centrally by a projectile.
The first order shear deformation theory is used for the face sheets and a 3D-elasticity solution of weak core is employed for the core.
A third cause is a lack of physical fitness, resulting in weak core muscles of the trunk.
"Admittedly, there is a risk that the number is slightly stronger, if weak core inflation in November was a symptom of temporary discounting.
Dresdner, under pressure from weak core earnings, has been a prime merger candidate.
Although satellite imagery continued to display a classical subtropical cyclone, with the storm surface and the upper low nearly collocated, data obtained during a Hurricane Hunters flight revealed a weak warm core strengthening within the mid levels of the circulation a feature present at the upper levels of tropical cyclones.
