Secondary stress. A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards.
Two groups of ground nesting bees commonly. found in Michigan are bumble bees and. burrower (andrenid) bees. Bumble bees are. easily recognized by their large, robust, hairy, black and yellow (sometimes orange) bodies. Bumble bees live in colonies of several. hundred individuals, but only the queens.
While most people associate the word âbeeâ with the honeybee or bumblebee, in actuality there are approximately 400 verified species of bees in Wisconsin, and likely more that have not yet been identified. These include various species of miner bees, mason bees, leafcutter bees, and sweat bees among many others.